664694247

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{3733}}^1$

素因数の和:3943

約数の個数: 32

約数和(自身を含む): 1037155840

約数和(自身を除く): 372461593

約数列:

[1, 3, 7, 21, 61, 139, 183, 417, 427, 973, 1281, 2919, 3733, 8479, 11199, 25437, 26131, 59353, 78393, 178059, 227713, 518887, 683139, 1556661, 1593991, 3632209, 4781973, 10896627, 31652107, 94956321, 221564749, 664694247]

約数ペア:

[(1, 664694247), (3, 221564749), (7, 94956321), (21, 31652107), (61, 10896627), (139, 4781973), (183, 3632209), (417, 1593991), (427, 1556661), (973, 683139), (1281, 518887), (2919, 227713), (3733, 178059), (8479, 78393), (11199, 59353), (25437, 26131)]